Apparatus for cooling



(No Model.)

' R. BURNS.

APPARATUS FOR COOLING, STONING, AND BAGGING COFFEE.

No.4lL7-l0.

Patented Sept. 24, 1889.

WITNESSES:

Ni'iE STATES PATENT OFFICE.

ROBERT BURNS, OF BROOKLYN, NEW YORK.

APPARATUSFQR COOLING, sToNme, AND BAGYGING COFFEE.

SPECIFICATION forming part of Letters Patent No. 411,710, dated September 24, 1889.

Application filed Karol: a, 1888. Serial 1%. 266,561. (so model.) i

To aZZ whom, it may concern."

Be it knownthat 1, ROBERT BURNS, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented new and useful Improvements in Apparatus for Cooling,,Stoning, and Bagging Coifee and other Materials, of which the following is a specification. Y

This invention relates to an apparatus which is intended more particularly for cooling, stoning, and bagging coffee, but which can also be used for other materials.

The peculiar and novel construction of iny apparatus is pointed out in the following specification and drawings, in which- Figure 1 representsa front View. Fig. 2 is a side elevation, partly in section. Fig.3 is a transverse vertical section in the plane a: as, Fig. 2. Fig. .l: is a detached inside View of the lower end of the delivery-pipe.

Similar letters indicate corresponding parts.

In the drawings, the letter A designates the hopper, which is closed and provided with a bottom B, of the form of an inverted pyramid, from the apex of which extends the spout O. This spout is provided with a valve or gate a, by means of which it can be closed or opened. 7

D is an air-suction apparatus, which, in the example shown by the drawings, is made in the forni of afan-blower. This air-suction apparatus ccnnects, by the suction-pipe E, with the hopper A, so that when said suction apparatus is in motion the air is drawn from the hopper and a partial vacuum is created therein.

F is the receptacle which contains the coffee-beans or other material to be acted upon. This receptacle is by preference made movable, and in the example shown in the drawings it is provided with wheels I) b, so that it can be readily pushed up against or drawn away from the air-suction apparatus A. Said receptacle is provided with a perforated bottom 0, and beneath this bottom it is also provided with an air-channel d, Fig. 2, and if the receptacle is pushed up against the air-suction apparatus its air-channel d is placed in communication with the end of a channel e, which extends from the air-suction apparatus. In order to produce a tight joint between the receptacle,F and the air-suction apparatus, a suitable packing may be interposed. G is the delivery-pipe, which extends from the hopperA to the receptacle F. The lower end of this delivery-pipe is made flaring, (see Figs. 3 and 4,) and it is provided with a channel f, which communicates with an, air-channel g, Fig. 2, which is provided in one end of the receptacle. Y

H is a gate which slides .up anddown in suitable guideways formed in the sides of 'the receptacle, and which contrdls the communication between-the channels f g and the receptacle. i

I is a glass pane inserted into the side of the delivery-pipe, through which the interior v Q of said pipe can be inspected.

In the case of the air-suction apparatus is formed a valve-chamber J,'which communicates with the suction-pipe 'E' and with the channel 6 of the air-suction apparatus, and in whi'ch is fitted avaive KT Whenthis valveis turned to the position shown in Fig. 2, and

the air-suction apparatus is set in motion, the

air contained'in the hopper A is rarefied and.

a current of air is created through air channel g, channel f; delivery-pipe G, and suctionpipe E, as indicated by the arrows in Fig. 2. If. the gate H is raised, the coffee-beans contained in the receptacle F are carried up into the hopper A by the upward current of air in the delivery-pipe G, the force of which is so regulated that stones or other heavy particles mixed with the beans remain at the bottom.

of the channel f. The force of the air-current can be regulated either by changing the speed of the air-suction apparatus or by turning the valve K'so as to partially close the suctionpipe E. As. the operation progresses, the cof fee in the receptacle F must be successively moved up toward the gate H, and if the contents of the receptacle are exhausted a freshlyloaded receptacle can be moved in its place. The beans which are carried into the hopper A can be readily discharged into bags or other I suitable receptacles by opening the spent 0.

If the gate H is closed and the valve K is turned so as to close the suction-pipe E and to open the communication between the airsuction apparatus and its channel e, an aircnrrent is created through the beans contained in the receptacle F, and freshly-roasted beans can be rapidly cooled.

WVhat I claim as new, and desire to secure by Letters Patent, is-

1. The combination of an air-suction apparatus, a receptacle for containing the material to be operated on and having an airchannel g, a hopper, a suctionpipe leading from the hopper to the air-suction apparatus, a delivery-pipe leading from the hopper to the receptacle and having an air-channel f in communication with the air-channel of said receptacle, and a gate for controlling communication between said receptacle and channels f and g, substantially as described.

2. The combination of an air-suction apparatus provided with a valve-chamber J and a channel e, a rotary valve K in the valvechamber, a receptacle F, having a perforated bottom and an air-channel d thereunder for connecting with the air-channel e, a hopper A, a delivery pipe G,1eading from the hopper to the receptacle and having an air-channel f in communication with the receptacle above the perforated bottom, and a suction-pipe E between the hopper and theai'r suction apparatus, substantially as described.

In testimony whereof I have hereunto set my hand and seal in the presence of two subscribing witnesses.

r v ROBERT BURNS. [L. s.]

Witnesses:

W. HA FF, E. F. KASTENHUBER. 

